I'm experiencing issues with this fault code P0480 - Cooling Fan 1. Any help appreciated. Bit of an essay on my experiences to date...hope it's useful for anyone with same issue.
I have 159 JTDM TI with A/C.
The fault normally happens when I've been driving to work, 10 miles or so and I'm slowing down off the motorway and hit slow moving traffic. Same spot more or less every time, the EML comes on a goes into limp mode. Used Multiecuscan to establish the code and potential issue. So code reader suggests a cooling fan issue.
Checked fan worked with direct source off the battery - all good. Then left vehicle running on drive for 30mins and never heard the fan kick in - in fact I've never heard the fan ever! Temp gauge sits at 90 no matter the drive/weather etc.
So found this thread http://goo.gl/ugaVpe
it led me to replace the fan control module. There are no relays to the best of my knowledge on this vehicle controlling the fans - the slots in the fuse box are blanks. The fan circuit is works from the module fixed to the fan housing. It's held with one pozidrive self-tapper screw in the plastic fan housing, bit awkward to get to (you can't see the head). A stubby screw driver is ideal and there's two lugs fit into the housing.
Fault was still there immediately after changing - annoying as the unit was £120 from Mangolettsi !! Anyway at this point i noticed that i didn't get the fault if the AC was off - normally i drive with auto-climate on. So turned off and EML can be turned off and drive normally.
Then read this website which has very useful technical aspect of the inputs for the circuit in question. Alfa-Romeo P0480 OBD/DLC Error Code - Fan 1 Control Circuit
So monitored engine temp via Multiecuscan and laboured engine on stand-still until and tried to get the fan to kick in, which it did at 106 centigrade.
So in theory all is working fine apart from when the AC is switched on the fault comes back.
Anyone had any similar experiences?
I'm going to do a recharge on the AC as the DATSC website mentioned above says AC refrigerant pressure sensor is part of system and the AC is running a bit warmer than it sound be.
Will update once completed but if anyone has got a view / experience I'd love to see how you tackled.